[Solved] What is the output of this Kotlin code?val numbers = listOf(1, 2, 3, 4) println(numbers.size) println(numbers.isEmpty()) println(numbers.isNotEmpty()) | Kotlin

Kotlin - Collections Fundamentals

What is the output of this Kotlin code?

val numbers = listOf(1, 2, 3, 4)
println(numbers.size)
println(numbers.isEmpty())
println(numbers.isNotEmpty())

A4 true false

B3 true false

C4 false true

DError: size is not a property

Step-by-Step Solution

Solution:

Step 1: Check the size of the list
The list has 4 elements, so numbers.size returns 4.
Step 2: Evaluate emptiness checks
numbers.isEmpty() returns false because the list is not empty.
numbers.isNotEmpty() returns true because the list has elements.
Final Answer:
4 false true -> Option C
Quick Check:
Size = 4, empty? false, not empty? true [OK]

Quick Trick: Remember size counts elements; isEmpty() returns false if not empty [OK]

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